Mitoses in the adrenal medullary cells.
D000313:Adrenal Medulla / Q000166:cytology*; D000818:Animals; D002940:Circadian Rhythm; D003078:Colchicine / Q000494:pharmacology; D008938:Mitosis; D051381:Rats; D013936:Thymidine / Q000378:metabolism; D014316:Tritium
D014316:Tritium; D003078:Colchicine; D013936:Thymidine